Pipe joints or couplings – With casing – lining or protector – Lined
Patent
1997-01-21
1999-02-02
Knight, Anthony
Pipe joints or couplings
With casing, lining or protector
Lined
285342, 137801, 137606, F16L 914, B67D 537
Patent
active
058654739
ABSTRACT:
In a water flow system, a non-metallic liner 50 is placed within at least a portion of a passage 48 of a supporting metallic end body 38 to preclude contact between any water flowing through the system and the passage of the end body. The liner 50 includes a flared section 60 at a first end 54 thereof which engages a bevelled surface 49 of the end body 38 and is held there in sealing fashion by a cone washer 82 and a nut 84 threadedly coupled to the end body. At a location near a second end 56 of the liner 50, the liner is formed with a first stepped shoulder 62 which facilitates location of the liner within the passage 48 of the end body 38 at the second end of the liner. A second stepped shoulder 64 is formed on the liner 50 which provides a location for an O-ring 72 which engages an adjacent portion of the passage 48 of the end body to form a seal thereby. With seals formed at the first and second ends 54 and 56 of the liner 50, any water passing through the liner will not contact the passage 48 of the end body 38.
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Rodriquez Joe D.
Semchuck Mario E.
Woolley Curtis S.
Emhart Inc.
Grafel Gary
Hoofnagle J. Bruce
Knight Anthony
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